Phones often record in VFR, which can cause audio/video sync issues in professional editing software. Why "42"?

The .mov extension is just a wrapper. The actual video might be encoded in an older format like DV or a newer one like H.264. If it won't play, you may need a modern player like VLC or to reinstall QuickTime .

In internet culture, the number is famously known from The Hitchhiker's Guide to the Galaxy as the "Answer to the Ultimate Question of Life, the Universe, and Everything." Because of this, creators often use "42" in filenames to hint at a deeper hidden meaning or "easter egg" in their content.